Resistencia química del hormigón. XV-Acción de una disolución saturada de yeso: influencia de la adición de escoria a un cemento portland de alta resistencia inicial. Evolución de las resistencias mecánicas a flexotracción y de los coeficientes de corrosi
In this work, the first of another new series, a study is made on the influence brought by adding different quantities of a groundgranulate slag to a high initial resistance industrial portland cement (cement 1 < > P-550-ARI) in its chemical-strength behaviour against the action of a gypsum saturated solution, determining the evolution of the chemical resistance using the Koch-Steinegger method, as well a tensile strengths of mortar test specimens (1:3) of 1 x 1 x 6 cm made with this cement 1 and with mixtures cement 1/slag = 85/15 - 65/35 - 40/60 and 30/70, in weight immersed in drinking water with some series of 12 test speciments filtered and other series that are analogue to the above, in a gypsum saturated solution, for 56-90-180 and 360 days, after curing them in a humidity saturated area at 20 ± 2°C, and later, 21 days under filtered drinking water. The favourabe action exerted by adding slag has been evident, especialy in high amounts (≥ 60 %) to cement 1 studied.
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